PT78302B - Multiparty line adaptor circuit with privacy feature and method of implementing reverting calls - Google Patents

Multiparty line adaptor circuit with privacy feature and method of implementing reverting calls

Info

Publication number: PT78302B
Authority: PT; Portugal
Prior art keywords: implementing; adaptor circuit; privacy feature; line adaptor; multiparty line
Prior art date: 1983-06-24

Application number

PT78302A

Other languages

Portuguese (pt)

Other versions

PT78302A (en

Original Assignee

Int Standard Electric Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1983-06-24

Filing date

1984-03-23

Publication date

1986-05-21

1984-03-23 Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp

1984-04-01 Publication of PT78302A publication Critical patent/PT78302A/en

1986-05-21 Publication of PT78302B publication Critical patent/PT78302B/en

Classifications

- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/02—Comparing digital values
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/68—Circuit arrangements for preventing eavesdropping
- H04M1/70—Lock-out or secrecy arrangements in party-line systems

Landscapes

Engineering & Computer Science (AREA)
Theoretical Computer Science (AREA)
Signal Processing (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Computational Mathematics (AREA)
Mathematical Optimization (AREA)
Pure & Applied Mathematics (AREA)
General Engineering & Computer Science (AREA)
Mathematical Analysis (AREA)
Telephonic Communication Services (AREA)
Devices For Supply Of Signal Current (AREA)
Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

PT78302A 1983-06-24 1984-03-23 Multiparty line adaptor circuit with privacy feature and method of implementing reverting calls PT78302B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/507,364 US4528424A (en)	1983-06-24	1983-06-24	Multiparty line adapter with privacy feature controlled by reversal of line polarity at a central power source

Publications (2)

Publication Number	Publication Date
PT78302A PT78302A (en)	1984-04-01
PT78302B true PT78302B (en)	1986-05-21

Family

ID=24018353

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
PT78302A PT78302B (en)	1983-06-24	1984-03-23	Multiparty line adaptor circuit with privacy feature and method of implementing reverting calls

Country Status (14)

Country	Link
US (1)	US4528424A (en)
EP (1)	EP0129843B1 (en)
JP (1)	JPS6016092A (en)
KR (1)	KR920002965B1 (en)
BR (1)	BR8402440A (en)
CA (1)	CA1201231A (en)
DE (1)	DE3483665D1 (en)
ES (1)	ES533597A0 (en)
IL (1)	IL71724A (en)
IN (1)	IN161443B (en)
MX (1)	MX155197A (en)
PT (1)	PT78302B (en)
YU (1)	YU67184A (en)
ZA (1)	ZA844006B (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4587380A (en) *	1984-06-14	1986-05-06	Harris Corporation	Interface for connecting standard telephones to party lines
US4567330A (en) *	1984-06-14	1986-01-28	Harris Corporation	Interface for connecting standard telephones to party lines
US4645877A (en) *	1984-06-14	1987-02-24	Harris Corporation	Interface for connecting standard telephones to party lines
US4821319A (en) *	1985-04-25	1989-04-11	Alcatel Usa Corp.	Single line telephone communication system
US5425089A (en) *	1992-01-27	1995-06-13	Chan; John Y.	Low cost telephone caller identification device and method
JPH08125771A (en) *	1994-10-20	1996-05-17	Nec Corp	Method for selecting terminal in analog subscriber line and device therefor
US5699417A (en) *	1995-04-21	1997-12-16	Cidco Incorporated	Text transmission using DTMF signalling
AU3453797A (en)	1996-07-11	1998-02-09	British Telecommunications Public Limited Company	Telephone apparatus
AU3453697A (en) *	1996-07-11	1998-02-09	British Telecommunications Public Limited Company	Telephone apparatus
US6044149A (en) *	1997-03-05	2000-03-28	Shaham; Israel	Device for detecting DTMF tones
US7149514B1 (en)	1997-07-30	2006-12-12	Bellsouth Intellectual Property Corp.	Cellular docking station
US20080207197A1 (en)	1997-07-30	2008-08-28	Steven Tischer	Apparatus, method, and computer-readable medium for interfacing devices with communications networks
US6411802B1 (en)	1999-03-15	2002-06-25	Bellsouth Intellectual Property Management Corporation	Wireless backup telephone device
US6584196B1 (en)	1999-05-14	2003-06-24	Conexant Systems, Inc.	Electronic inductor with transmit signal telephone line driver
US6647114B1 (en)	1999-05-14	2003-11-11	Conexant Systems, Inc.	Telephone line interface circuit with virtual impedance
US6731749B1 (en)	1999-05-14	2004-05-04	Conexant Systems, Inc.	Telephone line interface circuit with intelligent line current and voltage control
US6853723B1 (en) *	1999-10-12	2005-02-08	Intel Corporation	High impedance polarity detector
US7120454B1 (en)	2001-12-26	2006-10-10	Bellsouth Intellectual Property Corp.	Auto sensing home base station for mobile telephone with remote answering capabilites
KR100438055B1 (en) *	2002-05-07	2004-07-02	(주) 아원	Telephone adapt for Privacy
US8275371B2 (en)	2002-07-15	2012-09-25	At&T Intellectual Property I, L.P.	Apparatus and method for providing communications and connection-oriented services to devices
US8000682B2 (en)	2002-07-15	2011-08-16	At&T Intellectual Property I, L.P.	Apparatus and method for restricting access to data
US7200424B2 (en)	2002-07-15	2007-04-03	Bellsouth Intelectual Property Corporation	Systems and methods for restricting the use and movement of telephony devices
US8526466B2 (en)	2002-07-15	2013-09-03	At&T Intellectual Property I, L.P.	Apparatus and method for prioritizing communications between devices
US8416804B2 (en)	2002-07-15	2013-04-09	At&T Intellectual Property I, L.P.	Apparatus and method for providing a user interface for facilitating communications between devices
US8543098B2 (en)	2002-07-15	2013-09-24	At&T Intellectual Property I, L.P.	Apparatus and method for securely providing communications between devices and networks
US8554187B2 (en)	2002-07-15	2013-10-08	At&T Intellectual Property I, L.P.	Apparatus and method for routing communications between networks and devices
US8885639B1 (en)	2005-09-22	2014-11-11	Verizon Patent And Licensing Inc.	Method and system for providing talking call waiting in a SIP-based network

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1222990B (en) *	1962-09-14	1966-08-18	Siemens Ag	Circuit arrangement for company lines in telecommunications, in particular telephone systems
US3688050A (en) *	1970-10-26	1972-08-29	Stromberg Carlson Corp	Telephone set identification system using reverse polarity interrogation signal
CA1200036A (en) *	1978-03-13	1986-01-28	Guido Panizzon	Partyline subscriber interface circuit
JPS55149590A (en) *	1979-05-09	1980-11-20	Nec Corp	Communication system of branch line
HU195713B (en) *	1980-04-29	1988-06-28	Tavkoezlesi Kutato Intezet	Service and industrial telephone equipment to a network stringed to line for alternative or exclusive selective traffic
DE3035308C2 (en) *	1980-09-18	1985-10-17	Siemens AG, 1000 Berlin und 8000 München	Circuit arrangement for telecommunications systems, in particular telephone systems, with two-way connections

1983
- 1983-06-24 US US06/507,364 patent/US4528424A/en not_active Expired - Lifetime
1984
- 1984-03-01 CA CA000448656A patent/CA1201231A/en not_active Expired
- 1984-03-23 PT PT78302A patent/PT78302B/en unknown
- 1984-04-12 YU YU00671/84A patent/YU67184A/en unknown
- 1984-05-02 IL IL71724A patent/IL71724A/en unknown
- 1984-05-25 ZA ZA844006A patent/ZA844006B/en unknown
- 1984-06-12 IN IN427/MAS/84A patent/IN161443B/en unknown
- 1984-06-14 KR KR1019840003334A patent/KR920002965B1/en active IP Right Grant
- 1984-06-19 MX MX201717A patent/MX155197A/en unknown
- 1984-06-20 EP EP84107086A patent/EP0129843B1/en not_active Expired - Lifetime
- 1984-06-20 DE DE8484107086T patent/DE3483665D1/en not_active Expired - Lifetime
- 1984-06-20 ES ES533597A patent/ES533597A0/en active Granted
- 1984-06-22 JP JP59127639A patent/JPS6016092A/en active Pending
- 1984-12-24 BR BR8402440A patent/BR8402440A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
EP0129843B1 (en)	1990-11-28
JPS6016092A (en)	1985-01-26
IL71724A0 (en)	1984-09-30
IN161443B (en)	1987-12-05
IL71724A (en)	1987-10-30
PT78302A (en)	1984-04-01
US4528424A (en)	1985-07-09
EP0129843A3 (en)	1988-04-20
CA1201231A (en)	1986-02-25
MX155197A (en)	1988-02-01
DE3483665D1 (en)	1991-01-10
BR8402440A (en)	1985-04-02
KR920002965B1 (en)	1992-04-11
YU67184A (en)	1988-02-29
KR850000162A (en)	1985-02-25
ES8601607A1 (en)	1985-10-16
ZA844006B (en)	1985-01-30
EP0129843A2 (en)	1985-01-02
ES533597A0 (en)	1985-10-16

Publication	Publication Date	Title
PT78302B (en)	1986-05-21	Multiparty line adaptor circuit with privacy feature and method of implementing reverting calls
GB2138656B (en)	1986-12-17	Cordless telephone systems and methods of preventing interference in such systems
GB2122846B (en)	1987-01-28	Call completion circuit and method
GB2144676B (en)	1987-04-01	Apparatus and method of extrusion
DE3275676D1 (en)	1987-04-16	Telecommunications cable and method of making same
HK34796A (en)	1996-03-08	Telecommunications nettork and method
EP0164718A3 (en)	1988-08-03	Automatic telephone dialing method and apparatus
GB2112606B (en)	1985-01-23	Communication set and method
CS482784A2 (en)	1989-09-12	Method and agent of alpha-amylase determination
GB2143167B (en)	1987-07-15	Press and method of making same
GB2144946B (en)	1986-12-31	Telephone answering apparatus
GB2185093B (en)	1988-09-14	Demolition device and method of preparing same
DE3565353D1 (en)	1988-11-03	Peritelephone system for telephone set and peritelephone pieces of apparatus
JPS56126920A (en)	1981-10-05	Method of mutually reducing diffusion
GB2173974B (en)	1988-09-07	Method of testing telephone subscribers lines
GB2142854B (en)	1986-11-19	Draw-bending apparatus and method
GB2148243B (en)	1986-09-03	Improved hose lifting member and method of manufacturing same
EG15353A (en)	1986-09-30	Method of and circuit arrangement for setting up a conference call
IL70100A0 (en)	1984-01-31	Method and system of telecommunication
EP0171012A3 (en)	1987-08-26	Acousto-optic device and method of making the same
GB8317843D0 (en)	1983-08-03	Communications systems and methods of operation
SU1150146A1 (en)	1985-04-15	Method of building ship and building ways for effecting same
EP0121794A3 (en)	1987-01-21	Pacemaker with switchable circuits and method of operation of same
JPS57116896A (en)	1982-07-21	Excavating method and apparatus
PL246599A1 (en)	1984-10-22	Apparatus for limiting possibilities of dialling in telephone set